Which of the following expresses the standard free-energy change for a dissolution…

CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

Which of the following expresses the standard free-energy change for a dissolution process in terms of its standard enthalpy change, standard entropy change, and absolute temperature T? (a) ΔG∘=− ΔH∘+TΔS∘\Delta G^{\circ}= -\,\Delta H^{\circ}+T\Delta S^{\circ} (b) ΔG∘=ΔH∘−TΔS∘\Delta G^{\circ}=\Delta H^{\circ}-T\Delta S^{\circ} (c) ΔG∘=ΔH∘+TΔS∘\Delta G^{\circ}=\Delta H^{\circ}+T\Delta S^{\circ} (d) ΔG∘=ΔH∘−2TΔS∘\Delta G^{\circ}=\Delta H^{\circ}-2T\Delta S^{\circ}

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